Zesty Black Cod with Miso & Easy Wasabi Mashed Potatoes Recipe

Tender, flaky black cod with miso marinades whispers of Pacific Northwest culinary magic, beckoning seafood lovers to a sublime dining experience.

Rich umami flavors dance across delicate fish, creating an elegant yet approachable meal.

Silky miso glaze caramelizes beautifully, promising a golden-brown exterior that crackles with each bite.

The accompanying wasabi mashed potatoes add a gentle heat and creamy complement to the buttery cod.

Restaurant-quality plates emerge from your home kitchen with surprising ease.

Simple techniques unlock complex flavors that will impress even discerning palates.

Get ready to elevate your dinner game with this sophisticated yet uncomplicated seafood masterpiece.

How to Make Black Cod with Wasabi Mash

• Flavor Foundation

Create a stunning marinade by gently simmering mirin and sake. Swirl in miso paste until it melts into a silky, rich liquid. Add a touch of sweetness with sugar, letting everything blend harmoniously. Cool the mixture completely.

• Fish Preparation

Bathe your black cod in the miso magic overnight, allowing deep flavor penetration. This marinading process transforms ordinary fish into an extraordinary culinary experience.

• Cooking Technique

Heat your oven to a toasty 400°F. Start by quickly grilling the fish for two minutes on each side to develop a beautiful caramelized exterior. Transfer to the oven and bake for ten minutes, ensuring a perfectly tender result.

• Wasabi Potato Cloud

Microwave potato cubes with savory broth until they’re meltingly tender. Warm milk and butter together, then introduce a zesty wasabi kick. Whip the potatoes into a creamy, fluffy cloud of deliciousness.

• Final Touch

Sprinkle a delicate dusting of maccha salt over your potato clouds for an elegant, aromatic finish that elevates the entire dish.

Tips to Nail Flavor in Miso Cod and Potatoes

• Let the black cod sit in the miso marinade overnight to develop deep, rich flavors that penetrate every fiber of the fish. The longer it marinates, the more delicious it becomes.
• Adjust the wasabi paste quantity to match your personal heat tolerance. Start with a small amount and gradually increase for a personalized spice level that suits your palate.
• Replace black cod with other delicate white fish like halibut or sea bass if unavailable. Each fish will bring a slightly different texture but maintain the recipe's elegant Japanese-inspired profile.
• Sprinkle extra maccha salt on the mashed potatoes or add a small garnish of finely chopped chives for a pop of color and fresh herbal note that enhances the dish's visual appeal.
• Store remaining miso marinade in an airtight container in the refrigerator for up to a week. Use it as a quick glaze for grilled vegetables or other seafood dishes to maximize flavor and minimize waste.

Serving Black Cod with a Side of Kick

• Plate with Elegance: Arrange the black cod on a pristine white plate, carefully placing the golden-brown fish atop a smooth mound of creamy wasabi mashed potatoes.
• Garnish with Flair: Sprinkle maccha salt delicately over the dish, adding a subtle green accent and a hint of Japanese-inspired sophistication to the presentation.
• Companion Beverage Pairing: Serve alongside a chilled glass of sake or a crisp white wine to complement the rich, umami flavors of the miso-glazed black cod and creamy potatoes.
• Side Greenery Accent: Add a small cluster of microgreens or a light herb garnish to bring freshness and color to the plate, balancing the richness of the fish and potatoes.

Storing Miso Cod and Wasabi Potatoes Right

• Maximize Meal Prep: Slice black cod into portion-sized pieces before marinating to save time during cooking.
• Refrigerate Wisely: Store marinated fish in an airtight container for up to 24 hours, keeping it covered in the miso mixture to enhance flavor absorption.
• Potato Preservation: Keep mashed potatoes in a sealed container in the refrigerator for 3-4 days. Reheat gently with a splash of milk to maintain creamy texture.
• Smart Leftover Strategy: Freeze individual portions of black cod and mashed potatoes separately in freezer-safe containers for up to 2 months, ensuring best quality and taste when reheated.

Quick Recipe Overview

Prep Time: 30 minutes

Cook Time: 15 minutes

Total Time: 45 minutes

Calories: 550 kcal

Servings: 5

What You’ll Need for Black Cod with Miso and Wasabi Potatoes

• Black Cod: Delicate, buttery fish that absorbs marinades beautifully and provides rich, tender protein.
• Potatoes: Creamy base that creates smooth, comforting side dish with excellent texture and flavor absorption.

• Mirin: Sweet Japanese rice wine that adds depth and subtle sweetness to the fish sauce.
• Sake: Traditional rice alcohol that tenderizes fish and enhances complex flavor profiles.
• Miso Paste: Fermented soybean paste bringing umami, saltiness, and authentic Japanese character.
• Sugar: Balances the savory elements and helps caramelize the fish during cooking.

• Milk: Creates creamy, luxurious texture in mashed potatoes.
• Butter: Adds richness and smooth, velvety mouthfeel to potato mixture.
• Wasabi: Provides sharp, nasal-clearing heat and distinctive Japanese flavor.
• Salt and Pepper: Essential seasonings for enhancing overall taste and balance.
• Maccha Salt: Unique garnish offering earthy green tea notes with mineral saltiness.

• Broth: Adds extra flavor and moisture when cooking potatoes, preventing dryness.

Tools to Prepare Miso Cod and Spicy Mashed Potatoes

• Baking Sheet: Crucial for grilling and baking the black cod evenly.
• Small Saucepan: Perfect for creating the miso marinade and dissolving sugar.
• Whisk: Essential for blending mirin, sake, and miso smoothly.
• Microwave-Safe Bowl: Ideal for cooking and softening potatoes quickly.
• Potato Masher: Great for creating creamy, lump-free mashed potatoes.
• Cutting Board: Needed for cubing potatoes and preparing ingredients.
• Sharp Knife: Important for precise ingredient preparation.
• Measuring Cups and Spoons: Ensures accurate ingredient quantities.

Silky Black Cod With Miso And Easy Wasabi Mashed Potatoes Recipe

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• Total Time: 45 minutes
• Yield: 5 1x

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Description

Succulent black cod with miso unveils Japanese culinary elegance with delicate flavors and precise techniques. Creamy wasabi mashed potatoes complement the fish, offering you a harmonious balance of oceanic richness and spicy comfort.

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Ingredients

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• 6–7 oz (170–198 g) black cod fillets, skinless, about 1 ½ inches thick
• 10–12 small Yukon gold potatoes, scrubbed well, peeling optional
• ½ cup (120 ml) white miso paste
• ⅓ cup (66 g) sugar
• 3 tbsps (45 ml) mirin
• 3 tbsps (45 ml) sake
• 4 tsps powdered wasabi
• ½ tsp salt
• ¼ tsp freshly ground pepper
• ½ cup (120 ml) chicken or vegetable broth
• 1 cup (240 ml) low-fat or non-fat milk
• 3 cloves garlic, crushed
• 1 tbsp butter (optional)
• Vegetable oil, for grilling
• Pickled ginger, for serving
• Maccha salt to garnish (optional)

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Instructions

1. Miso Marinade Preparation: Boil mirin and sake in a saucepan, then whisk white miso paste until smooth. Incorporate granulated sugar, stirring until dissolved. Cool the marinade to room temperature for 15-20 minutes.
2. Marinating Cod: Submerge black cod fillets completely in cooled miso marinade, refrigerating overnight to intensify flavors.
3. Fish Preparation: Preheat oven to 400°F and coat a grill pan with non-stick spray. Remove cod from marinade, pat dry, and sear for 2 minutes per side to create golden-brown exterior.
4. Baking Cod: Transfer seared fish to preheated oven, baking for 10 minutes until cooked through while maintaining tenderness.
5. Potato Foundation: Cube russet potatoes and microwave with low-sodium chicken broth for 8-10 minutes until fork-tender.
6. Wasabi Cream Integration: Warm whole milk and unsalted butter until melted. Blend in wasabi paste, kosher salt, and black pepper.
7. Potato Finishing: Merge seasoned milk mixture with cooked potatoes, mashing until silky and uniform. Sprinkle maccha salt as an elegant garnish.

Notes

• Marinate Strategically: Allow black cod to soak in miso mixture overnight for deep, rich flavor infusion and maximum tenderness.
• Control Searing Precision: Golden-brown exterior requires exactly 2 minutes per side to develop perfect caramelization without overcooking delicate fish.
• Temperature Matters: Maintain 400°F oven temperature to ensure even cooking and preserve moisture in the black cod fillets.
• Wasabi Technique: Warm milk and butter before adding wasabi paste to help distribute flavors evenly and create a smooth, creamy potato texture.

• Prep Time: 30 minutes
• Cook Time: 15 minutes
• Category: Dinner
• Method: Baking
• Cuisine: Japanese

Nutrition

• Serving Size: 5
• Calories: 550
• Sugar: 12 g
• Sodium: 800 mg
• Fat: 15 g
• Saturated Fat: 5 g
• Unsaturated Fat: 8 g
• Trans Fat: 0 g
• Carbohydrates: 70 g
• Fiber: 5 g
• Protein: 30 g
• Cholesterol: 60 mg